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When Physical is Not Real Enough

Bellosa, Frank

Abstract:

This position paper argues that policies for physical memory management and for memory power mode control should be relocated to the system software of a programmable memory management controller (MMC). Similarly to the mapping of virtual to physical addresses done by an MMU of a processor, this controller offers another level of mapping from physical addresses to real addresses in a multi-bank multi-technology (DRAM, MRAM, FLASH) memory system. Furthermore, the programmable memory controller is responsible for the allocation and migration of memory according to power and performance demands.
Our approach dissociates the aspects of memory protection and sharing from the aspect of energy-aware management of real memory. In this way, legacy operating systems do not have to be extended to reduce memory power dissipation, and power-aware memory is no longer limited to CPUs with an MMU.


Volltext §
DOI: 10.5445/IR/1000002568
Originalveröffentlichung
DOI: 10.1145/1133572.1133573
Scopus
Zitationen: 5
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Informatik – Institut für Betriebs- und Dialogsysteme (IBDS)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2004
Sprache Deutsch
Identifikator urn:nbn:de:swb:90-25689
KITopen-ID: 1000002568
Erschienen in Proceedings of the 11th ACM SIGOPS European Workshop, Leuven, Leuven
Verlag Leuven
Seiten 137-140
Nachgewiesen in Dimensions
Scopus
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